Moderate severityNVD Advisory· Published Jun 19, 2020· Updated Aug 5, 2024
CVE-2017-18893
CVE-2017-18893
Description
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. Display names allow XSS.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/mattermost/mattermost-serverGo | < 4.0.5 | 4.0.5 |
github.com/mattermost/mattermost-serverGo | >= 4.1.0, < 4.1.1 | 4.1.1 |
github.com/mattermost/mattermost-serverGo | >= 4.2.0-rc1, < 4.2.0 | 4.2.0 |
Affected products
3- Mattermost/Serverdescription
- ghsa-coords2 versionspkg:golang/github.com/mattermost/mattermost-serverpkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6
< 4.0.5+ 1 more
- (no CPE)range: < 4.0.5
- (no CPE)range: < 0.0.20260114T191543-150000.1.137.1
Patches
Vulnerability mechanics
Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
7- github.com/advisories/GHSA-887v-xh2x-47cmghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2017-18893ghsaADVISORY
- github.com/mattermost/mattermost/commit/2a4d88d07c5815deac103e109550d25338507151ghsaWEB
- github.com/mattermost/mattermost/commit/670bfbf62686ebe9f2ab332733d851a62b6950b0ghsaWEB
- github.com/mattermost/mattermost/commit/d0b42b9e527e93a61fd06a9b9106fc97067807e4ghsaWEB
- mattermost.com/security-updatesghsaWEB
- mattermost.com/security-updates/mitrex_refsource_CONFIRM
News mentions
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